A project involves the rezoning of mixed use/industrial land for commercial/housing purposes, the construction of a 40-story apartment building with stores on the ground floor, and the extension of an existing train line to service the area. Project alternatives include (1) "no build", (2) omitting the train extension aspect, and (3) using green methods during construction. Public scoping revealed that traffic and income are twice as important as air chemical, water use or energy use. Calculate the overall impact of the proposed project and each project alternative, identify the optimum project, and explain your choice. Show your work.

Suppose life expectancy in years (l) is a function of two inputs, health expenditures (h) and nutrition expenditures (n) in hundreds of dollars per year. the production function is upper l equals ch superscript 0.40 baseline upper n superscript 0.60l=ch0.40n0.60. beginning with c = 1, a health input of $400400 per year (hequals=44) and a nutrition input of $400400 per year (nequals=44), show that the marginal product of health expenditures and the marginal product of nutrition expenditures are both decreasing. the marginal product of health expenditures when h goes from 44 to 55 is nothing, and the marginal product of health when h goes from 66 to 77 is nothing. (round your answers to three decimal places.)